Enable sending MessagePorts to a different renderer (Chromium side)

content/browser/renderer_host/render_process_host_impl.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_IMPL_H_
 
 #include <map>
 #include <queue>
 #include <string>
@@ skipping 168 matching lines @@
       const GURL& url);
 
   static base::MessageLoop* GetInProcessRendererThreadForTesting();
 
 #if defined(OS_ANDROID)
   const scoped_refptr<BrowserDemuxerAndroid>& browser_demuxer_android() {
     return browser_demuxer_android_;
   }
 #endif
 
+  MessagePortMessageFilter* message_port_message_filter() const {
+    return message_port_message_filter_;
+  }
+
  protected:
   // A proxy for our IPC::Channel that lives on the IO thread (see
   // browser_process.h)
   scoped_ptr<IPC::ChannelProxy> channel_;
 
   // True if fast shutdown has been performed on this RPH.
   bool fast_shutdown_started_;
 
   // True if we've posted a DeleteTask and will be deleted soon.
   bool deleting_soon_;
@@ skipping 138 matching lines @@
 #if defined(OS_ANDROID)
   scoped_refptr<BrowserDemuxerAndroid> browser_demuxer_android_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(RenderProcessHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_IMPL_H_